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Tips and questions relating to the GPS modules from SFE
By mot1639
#157535
Hi all

I already bought LS20031 , and it great module for GPS application ..
by default it use 57600 baud rate
now I phase one problem on it >>>> which is I can't send command to it , when I send it does not repose. but when I use mini GPS application , I can easily control the module such as frequency rate and enable WAAS ....

where is my problem .. what I miss ?

I try this command in putty or in miKroc UART but still same problem ..
Code: Select all
$PMTK320,0*26
with <CR><LF>
Code: Select all
$PMTK102*31
Code: Select all
$PMTK103*30

please advice ..

regards
By fll-freak
#157686
If it works with the vendor software and not yours then I would suggest you are not sending the right data to the device. I would recommend using a protocol analyzer (if you have access to one) or using an RS-232 sniffer program to record the bytes the vendor software is sending. Compare that to what you are sending to find your error.